Hi JPMontero,
Thanks for your quick reply. I compiled edison-src-rel1-maint-rel1-ww42-14.tgz and flash the Edison breakout board with the image. I haven't add any special special packages. I just add the library of bluetooth and pthread in the iotdk and pass the application compiling. But when I download the application to the target and run it, it always says "No such device" when invoking the interface hci_get_route(NULL). I've refered to the method of Upgrading Intel® IoT Developer Kit libraries – Intel® Edison or Intel® Galileo board | Intel® Developer Zone to update the target. But nothing changed. What can I do then?